Graco Optimiser 2K Manuale operativo

308–610

Rev. A

INSTRUCTIONS-PARTS

LIST

INSTRUCTIONS

This

manual contains important

warnings and information.

READ AND KEEP FOR REFERENCE.

See manual 308–341 for complete gun

warnings and instructions.

Optimiser



Upgrade Kit

Part

No. 238–216

For

use with the Optimiser 2K



Spray Gun, Part No. 949–239

Pressure Relief Procedure

WARNING

PRESSURIZED

EQUIPMENT HAZARD

The equipment stays pressurized until pressure is

manually relieved. To reduce the risk of serious

injury from pressurized fluid, accidental spray from

the gun, or splashing fluid, follow this procedure

before cleaning or servicing the gun and whenever

you are instructed to relieve pressure.

Close the adhesive and activator shut-of

f valves.

2. T

rigger the gun into the spray booth* to relieve the

fluid pressures and clear excess activator from the

gun.

If the gun has been flushed with solvent, be sure to

spray the solvent into a grounded metal waste con

tainer.

Close the atomizing air shut-of

f valve.

GRACO INC. P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

COPYRIGHT

1995, GRACO INC.

Graco

Inc. is registered to I.S. EN ISO 9001



Installation

Disassembly

NOTE:

The reference letters marked with an asterisk

(for example, Y*) in the text and Fig. 1, should be

discarded and replaced with the parts from the kit. See

the parts list, page 4, for the parts included with the

kit.

Flush and clean the gun as instructed in the spray

gun manual 308–341, included with the kit.

Follow the

Pressure Relief Procedure

on the

cover.

Remove the air cap (Y*) from the gun. See Fig. 1.

Remove the gun and activator triggers (A, B).

Push on the tube connector (C) and disconnect the

tube (D*).

Remove the two screws (E) from the activator inlet

housing (F).

Remove and disassemble the activator valve (G).

Fig. 1

05879

JT* M

AA*

BB* CC*

DD*

Remove the plate (H*) from the gun.

Remove the fan air valve assembly (M). Remove

the retaining ring (J) and adjustment nut (T*) from

the air valve (N).

10.

Remove the fluid adjustment knob (L). Pull the

needle (V*) out of the gun body

11.

Discard the parts being replaced. Clean the re

maining parts in soapy water

Installing the Kit

NOTE:

See Fig. 3 for torques and other assembly

notes.

Assemble the activator valve (G), using the kit

parts (1, 8, 1

1).

Make sure the thin end of the needle (11) is

straight to avoid scratching the nozzle.

Install the o-ring (Q), spreader (P), and activa

tor packing nut (K) into the activator inlet

housing (F). See Fig. 2.

Fig. 2 02781A

Spreader

(P) taper faces away from o-ring (Q)

T

ighten packing nut (K) to 20 in-lbs (2.3 N

Sm)





c. Assemble

the remaining valve parts.

Secure the activator housings (8, F) with the

four stainless steel screws (1).

CAUTION

o avoid damaging the threads, do not over-tighten

the screws (1).



Installation

Installing the Kit (continued)

2. Install

the restrictor (6), flat side up, into the activa

tor outlet housing (8).

Place the o-ring (9) in the groove in the activator

outlet housing (8). Lightly lubricate the o-ring.

Secure the activator valve (G) to the plate (7) with

the two screws (E).

Place the o-ring (9) in the groove on the plate (7).

Lightly lubricate the o-ring, and slide the plate, with

the activator valve assembly

, onto the top of the

gun body

Install the gun and activator triggers (A, B) with the

pivot pin (S) and screw (R).

Install the needle (5) into the gun body

, then install

the fluid adjustment knob (L) and spring (X).

Pull back the trigger (A) until the activator valve

starts to open. T

ighten the two hex nuts on the

activator needle so that both fluid valves open

together.

Install the adjustment nut (4) and the retaining ring

(J) on the air valve (N). Install the air valve assem

bly into the gun body

10.

Connect the tube (2).

11.

Install the air cap (10), and secure it with the

retaining ring (W).

Fig. 3













05880



Lightly

lubricate.



Lightly lubricate contact area on trigger (B) face.

T

ighten to 25–35 in-lbs (2.8–4.0 N

Sm).

T

ighten to 1–5 in-lbs (0.1–0.6 N

Sm).

T

ighten to 10–15 in-lbs (1.1–1.7 N

Sm).

T

ighten to 20 in-lbs (2.3 N

Sm).

T

ighten to 5 in-lbs (0.6 N

Sm).







4308-610

Parts

Part No. 238–216

Includes

items 1 to 12. Refer to Fig. 3, page 3.

Ref.

No.

Part No.

Description Qty.

1 113–411 SCREW

, cap, SST

; 10–24 x 3/4 in.

2 187–169

TUBE; nylon;

5/32 in. (3.97 mm) O.D.

3l514–581 CONNECT

OR, tube

4 188–700 NUT

, air adjustment

5 238–218

FLUID NEEDLE ASSY

0.055 in. (1.397 mm) size

6 191–015 RESTRICT

OR, orifice

Ref.

No.

Part No.

Description Qty.

7 190–247 PLA

TE, gun

8 625–730

HOUSING, activator outlet

9 106–555

O-RING; V

itonr2

10 185–794

AIR CAP; 0.020–0.055 in.

(0.508–1.397 mm) size

11 949–295

NEEDLE ASSY

., activator valve

The tube connectors are included as spare parts.

They do not need to be installed with the other kit

parts. In general, replace the tube connectors after

6 months of usage.

Graco

Phone Number

PLACE AN ORDER

, contact your Graco dis

tributor

, or call this number to identify the distribu

tor closest to you:

1–800–367–4023 T

oll Free

Sales

Offices:

Atlanta, Chicago, Detroit, Los Angeles

Foreign Offices:

Belgium, Canada, England, Korea, Switzerland, France, Germany

, Hong Kong, Japan

GRACO INC. P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

PRINTED

IN U.S.A. 308–610 December 1995

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